RegExr.com is an online tool to learn, build, and test Regular Expressions. It was created by Grant Skinner and the nice people at gskinner.com.

ReX.js is described as 'Create regexps with clean, readable, functional & chainable syntax with help of in-editor autocompletion from TypeScript! Built better regexps faster!' and is an app in the development category. There are five alternatives to ReX.js for a variety of platforms, including Web-based, Self-Hosted, Google Chrome, Flathub and Mac apps. The best ReX.js alternative is RegExr, which is both free and Open Source. Other great apps like ReX.js are Wildcard, iHateRegex, RegexPilot and Regex101 Chrome Extension.
RegExr.com is an online tool to learn, build, and test Regular Expressions. It was created by Grant Skinner and the nice people at gskinner.com.



iHateRegex offers an easy way for developers to find helpful and reusable regular expressions while also providing an intuitive playground to interact with regex snippets to create or just learn.


Visual regex builder for Mac featuring drag-and-drop blocks, AI that generates patterns from English, explanations for each regex part, 21 real regex engines, instant engine switching, real-time match testing, sample library, VS Code integration, export, and offline AI support.




Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, Go, JavaScript, Java.
